AEMC 3945 Power Pad 3-Phase Power Quality Analyzer
Description
The AEMC PowerPad Model 3945 power quality analyzer allows you to look inside your electrical system and see what is going on. Troubleshooting is so much easier because you can see the volts, amps and harmonic content in real-time and take pictures to document and analyze. The full color graphical display lets you see and analyze each signal clearly.
With a high speed sample rate, at 256 samples per cycle, the AEMC PowerPad Model 3945 power quality analyzer provides excellent fidelity in reproducing waveforms and capturing transients that happen as fast as 62.5 µs. The PowerPad's 4MB of memory is conveniently positioned to let you store four different types of data, synchronized or independent of each other. You can store up to 12 screen snapshots, up to 50 captured transients that contain four cycles for each active input and 4096 alarm events. You can also record trend data for days, weeks or even months.
Six direct access function buttons on the AEMC PowerPad Model 3945 power quality analyzer quickly let you see waveforms, harmonics, transients, alarm events, record and power & energy. Other functions and features of the PowerPad Model 3945 include current probes that auto configure the instrument's current channel for range and scale and an online help system that gives you clear information about the functions and buttons for each screen.
Features
- True RMS single-, two- and three-phase measurements at 256 samples/cycle, plus DC
- Real-time color waveforms
- Easy-to-use on-screen setup
- Automatic current probe recognition and scaling
- True RMS voltage and current measurement
- Measures DC volts, amps and power
- Display and capture voltage, current and power harmonics to 50th order, including direction, in real time
- Capture transients down to 1/256th of a cycle
- Phasor diagram display
- Peak voltage and current
- Nominal frequency from 40 to 70Hz
- VA, VAR and W per phase and total
- kVAh, VARh and kWh per phase and total
- Neutral current display for three-phase
- Crest factors for current and voltage
- Transformer K-factor display
- Power Factor, displacement PF display
- Captures up to 50 transients
- Short-term flicker display
- Phase unbalance (current and voltage)
- Harmonic Distortion (total and individual) from 1st to 50th
- Alarms, surges and sags
- Records date and characteristics of disturbances
- Immediate printout directly to a printer
- Screen snapshot function captures waveforms or other information on the display
- Optically isolated RS-23 communication port
- Includes DataView® Professional software for data storage, analysis and report generation
- EN 61010, 600V Cat. III
AEMC 3945 Applications
- Verification of power distribution circuits
- Measurement and recording of power system quality (kW, VA, VAR)
- Energy metering (kVAh, VARh, kWh)
- In plant troubleshooting of power distribution panels and individual machinery
- Monitor pad mount transformers
- Determine harmonic problems originating from source or load
- Monitor phase unbalances
- Determine transformer K-factor
Specifications
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MODEL |
3945 |
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ELECTRICAL |
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Sampling Frequency |
256 samples per cycle |
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Data Storage |
4MB partitioned for waveforms, transients, alarms and trend recording |
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Voltage (TRMS) |
Phase-to-Phase: 830V Phase-to-Neutral: 480V |
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Current (TRMS) |
MN Clamp: 0 to 6A/120A or 0 to 240A SR Clamp: 0 to 1200A MR Clamp: 0 to 1200AAC, 0 to 1400ADC AmpFlex™: 0 to 6500A1 |
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MEASUREMENT |
RANGE |
RESOLUTION |
ACCURACY |
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Single-Phase RMS Voltages |
6 to 480V |
0.1V |
± 0.5% ± 2cts |
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Phase-to-Phase RMS Voltages |
10 to 830V |
0.1V |
± 0.5% ± 2cts |
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Single-Phase Peak Voltages |
6 to 680V |
1V |
± (1% + 5cts) |
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Phase-to-Phase Peak Voltages |
10 to 1360V |
1V |
± (1% + 5cts) |
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Frequency (Hz) |
40 to 69Hz |
0.01Hz |
± 0.01Hz |
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DC Voltage Component |
6 to 650V |
0.1V |
± 1% ± 2cts |
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Current Probes (Arms) MN Clamp SR Clamp AmpFlex™ Probe |
0 to 240A 0 to 1200A 10 to 6500A |
0.1A 0.1A; 1A ≥ 1000A 0.1A; 1A ≥ 1000A |
± (0.5% + 2cts) ± (0.5% + 2cts) ± (0.5% + 1A) |
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Active (Real) Power (kW) |
0 to 9999kW |
4 digits (10,000ct) |
± 1% ± 1ct @ PF ≥0.8 |
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Reactive Power (kVAR) |
0 to 9999kVAR |
4 digits (10,000ct) |
± 1% ± 1ct @ PF ≤0.8 |
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Apparent Power (kVA) |
0 to 9999kVA |
4 digits (10,000ct) |
± 1% ± 1ct |
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Power Factor (PF & DPF) |
-1.000 to 1.000 |
0.001 |
±(1.5% + 0.01) |
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Active Energy (kWh) |
0 to 9999MWh |
4 digits (10,000ct) |
± 1% ± 1ct @ PF ≥0.8 |
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Reactive Energy (kVARh) |
0 to 9999MVARh |
4 digits (10,000ct) |
± 1% ± 1ct @ PF ≤0.8 |
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Apparent Energy (kVAh) |
0 to 9999MVAh |
4 digits (10,000ct) |
± 1% ± 1ct |
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Unbalance (V & A) |
0 to 100% |
0.1% |
± 1% ± 1ct |
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Phase Angle (V–A, A–A, V–V)) |
-179° to +180° |
1° |
± 2° ± 1ct |
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Harmonics (1st to 50th) F = 40 to 69Hz (V ≥ 50V, A > Inom/100) |
0 to 999% |
0.1% |
±1% + 5cts |
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Total Harmonic Distortion (V & A) |
0 to 999% |
0.1% |
±1% + 5cts |
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K-factor (Akf) |
1 to 99.99 |
0.01 |
±5% ± 1ct |
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Flicker (PST) |
0.00 to 9.99 |
0.01 |
– |
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Power Source |
9.6V NiMH rechargeable battery pack AC supply: 110/230VAC ±20% (50/60Hz) |
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Battery Life |
6 hrs with display on; ≤96 hrs with display off (record mode) |
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ENVIRONMENTAL |
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Operating Temperature |
32° to 122°F (0° to 50°C) |
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Storage Temperature |
-4° to +122°F (-20° to +50°C) |
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MECHANICAL |
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Display |
1/4 VGA (320 x 240) color LCD |
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Dimensions |
9.5 x 7 x 2″ (240 x 180 x 55mm) |
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Weight |
4.6 lbs (2.1kg) |
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SAFETY |
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Safety Rating |
EN 61010-1, 600V Cat. III, Pollution Degree 2 |
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Double Insulation |
Yes |
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CE Mark |
Yes |
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